CN213716591U

CN213716591U - Photoelectric composite cable

Info

Publication number: CN213716591U
Application number: CN202023200434.6U
Authority: CN
Inventors: 吴仁和; 陈卫华; 徐健
Original assignee: Quanxing Cable Co ltd Jiangsu
Current assignee: Quanxing Cable Co ltd Jiangsu
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-07-16
Anticipated expiration: 2030-12-28

Abstract

A photoelectric composite cable comprises a central layer arranged at the center of the cable, wherein a wrapping layer is wrapped on the outer side of the central layer, an intermediate layer is arranged on the outer side of the wrapping layer, and an outer sheath is arranged on the outer side of the intermediate layer; the central layer comprises a loose tube single-mode fiber, a signal wire, a power wire and a filling wire, wherein the loose tube single-mode fiber is internally tangent to and wraps the inner wall of the covering; the loose tube single-mode optical fiber, the signal wire, the power wire and the filling wire are tangent in pairs; the filling wire adopts an anti-tensile rope, and the middle layer adopts a tensile braided layer. The utility model adopts the loose tube single mode fiber, which can protect the fiber in the cable and avoid or reduce the probability of fiber being broken; in addition, the tensile resistance of the cable is further increased due to the arrangement of the tensile resistance rope and the tensile resistance weaving layer, and the cable is protected.

Description

Photoelectric composite cable

Technical Field

The utility model relates to the technical field of cables, concretely relates to photoelectric composite cable.

Background

With the explosion of communication services, telephone services in communication network services are in a steady growth trend, data services are in an exponential growth situation, and multimedia such as voice, data and images are required to be transmitted, so that larger network capacity and wider bandwidth are required.

The photoelectric composite cable is suitable for being used as a transmission line in a broadband access network system, is a novel access mode, organically combines a metal wire and an optical fiber, and is an integrated transmission medium for transmitting electric energy and optical information simultaneously, on the same way and in the same direction. The method realizes the integration of power flow, service flow and information flow.

However, when the existing optical cable is twisted or squeezed, the inner conductor is easily twisted or even broken, so that improvement is needed.

Disclosure of Invention

Aiming at the technical problem, the technical scheme provides the photoelectric composite cable which can effectively solve the problem.

The utility model discloses a following technical scheme realizes:

a photoelectric composite cable comprises a central layer arranged at the center of the cable, wherein a wrapping layer is wrapped on the outer side of the central layer, an intermediate layer is arranged on the outer side of the wrapping layer, and an outer sheath is arranged on the outer side of the intermediate layer; the central layer comprises an optical fiber cable, a signal wire, a power wire and a filling wire, wherein the optical fiber cable is internally tangent to and wraps the inner wall of the wrapping layer; the optical fiber cable, the signal wire, the power wire and the filling wire are tangent in pairs; the filling wire adopts an anti-tensile rope, and the middle layer adopts a tensile braided layer.

Further, the optical fiber cable comprises four optical fibers arranged inside and a loose tube arranged outside the optical fibers.

Furthermore, the signal line is formed by twisting a plurality of distinguishable single-wire conductors; the outer sides of the multiple single-wire conductors are provided with sub-shielding layers; an inner sheath is arranged on the outer side of the sub-shielding layer.

Furthermore, the single-wire conductor is formed by coaxially twisting a plurality of tinned copper wires, and an insulating layer is wrapped on the outer side of each tinned copper wire.

Furthermore, the inner sheath is made of fluoroplastic, and the thickness of the inner sheath is more than or equal to 0.15 mm.

Furthermore, the sub-shielding layer is a braided shielding layer wrapped outside the single-wire conductor in a braided mode, the braided shielding layer is formed by braiding tinned copper wires, and the braided density is larger than or equal to 85%.

Furthermore, the power line is formed by twisting a plurality of distinguishable single-wire conductors; a sheath used for fixing the plurality of single-wire conductors is arranged outside the plurality of single-wire conductors; the single-wire conductor is formed by coaxially twisting a plurality of tinned copper wires, and an insulating layer is wrapped on the outer side of each tinned copper wire.

Furthermore, the tensile rope and the tensile braid layer are both made of aramid fiber yarns; the weaving density of the tensile woven layer is greater than or equal to 80%.

Furthermore, the wrapping layer is formed by wrapping polyester films, and the covering rate of the total wrapping layer is more than or equal to 10%.

Furthermore, the outer sheath is made of polyurethane, and the thickness of the outer sheath is more than or equal to 1.5 mm.

Advantageous effects

The utility model provides a pair of photoelectric composite cable compares with prior art, and it has following beneficial effect:

(1) according to the technical scheme, the loose tube single mode fiber is adopted, so that the fiber in the cable can be protected, and the probability of breaking the fiber is avoided or reduced; in addition, the tensile resistance of the cable is further increased due to the arrangement of the tensile resistance rope and the tensile resistance weaving layer, and the cable is protected.

(2) This technical scheme passes through the loose sleeve pipe in the optic fibre outside to and the branch shielding layer that the signal line outside set up, mutual interference rate between effectual reduction signal line and the optic fibre. The transmission function of the cable is increased, and meanwhile, the shielding performance of the signal line and the optical fiber and the interference resistance between the signal line and the optical fiber are increased. Meanwhile, the situation that signals and data are stolen or lost in the transmission process can be effectively avoided. The accuracy of signal line transmission in the cable is increased.

(3) The filling line in the technical scheme adopts aramid fiber, and the aramid fiber has high toughness and strength; the stability and the tensile strength of the wire and the cable are improved, so that the cable has stronger compressive resistance in a submarine high-pressure uniform environment; the cable can effectively resist the influence of submarine water flow or submarine organisms on the cable, and can resist the collision of the submarine encountering marine organisms; so that the cable can be stably in a working state even if the cable encounters collision.

(4) In the technical scheme, the outer sheath is made of polyurethane, so that the cable has oil resistance and acid and alkali resistance; the tensile rope, the tensile braid layer, the optical fiber, the signal wire, the power wire and the filling wire are internally tangent and wound on the covering, and the arrangement of tangency of every two cables is adopted, so that the cable has higher pressure resistance and can work in a water area with the water depth of about 150 meters for a long time.

Drawings

Fig. 1 is a schematic cross-sectional view of the overall structure of the present invention.

Fig. 2 is a schematic cross-sectional view of the signal line structure of the present invention.

Reference symbols in the drawings: the cable comprises a 1-signal wire, an 11-single-wire conductor, a 111-tinned copper wire, a 112-insulating layer, a 12-sub shielding layer, a 13-inner sheath, a 2-optical fiber cable, a 21-optical fiber, a 22-loose tube, a 3-power wire, a 31-single-wire conductor, a 311-tinned copper wire, a 312-insulating layer, a 32-inner sheath, a 4-tensile rope, a 5-lapping layer, a 6-tensile woven layer and a 7-outer sheath.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are only some, but not all embodiments of the invention. Under the prerequisite that does not deviate from the design concept of the utility model, the ordinary person in the art should fall into the protection scope of the utility model to the various changes and improvements that the technical scheme of the utility model made.

Example 1:

as shown in fig. 1-2, the photoelectric composite cable includes a central layer disposed at the center of the cable, a wrapping layer is wrapped on the outer side of the central layer, an intermediate layer is disposed on the outer side of the wrapping layer, and an outer sheath is disposed on the outer side of the intermediate layer. The central layer comprises an optical fiber cable, a signal wire, a power wire and a filling wire which are internally tangent to and wrap the inner wall of the covering; the optical fiber cable, the signal wire, the power wire and the filling wire are tangent in pairs.

The optical fiber cable comprises four optical fibers arranged inside and a loose tube arranged outside the optical fibers; in this embodiment, the optical fiber is a 4-core loose tube single mode optical fiber.

The signal wire is formed by twisting 2 distinguishable single-wire conductors; the cross street area of each single wire conductor is 0.5mm²(ii) a The cable is formed by coaxially twisting a plurality of tinned copper wires, an insulating layer is wrapped on the outer side of each tinned copper wire, and the insulating layer is made of fluoroplastic. The outer sides of the 2 single-wire conductors are provided with sub-shielding layers; the sub-shielding layer is a braided shielding layer wrapped outside the single-wire conductor in a braided mode, the braided shielding layer is formed by braiding tinned copper wires, and the braiding density is larger than or equal to 85%. The outer side of the sub-shielding layer is provided with an inner sheath, the inner sheath is made of fluoroplastic, and the thickness of the inner sheath is larger than or equal to 0.15 mm.

The power line is formed by twisting 2 distinguishable single-wire conductors; the cross-sectional area of each single-wire conductor is 1.5mm²(ii) a The cable is formed by coaxially twisting a plurality of tinned copper wires, an insulating layer is wrapped on the outer side of each tinned copper wire, and the insulating layer is made of fluoroplastic. The outer sides of the 2 single-wire conductors are provided with inner sheaths used for fixing a plurality of single-wire conductors; the inner sheath is made of fluoroplastic, and the thickness of the inner sheath is more than or equal to 0.15 mm.

The filling line adopts the tensile rope, and the tensile rope adopts aramid fiber silk preparation to form.

The outside at optic fibre cable, signal line, power cord and filler wire is provided with always around the covering, always around the covering and adopt polyester film to wind to form, and the rate of taking the lid of always around the covering is more than or equal to 10%.

A tensile braid layer is arranged on the outer side of the main wrapping layer; the tensile braided layer is made of aramid fiber yarns; the weaving density of the tensile woven layer is greater than or equal to 80%.

The outer side of the tensile braided layer is provided with an outer sheath which is made of polyurethane, and the thickness of the outer sheath is more than or equal to 1.5 mm.

Technical parameters of the cable:

1) conductor direct current resistance (+ 20 ℃ C.) of 0.5mm²Not more than 50.8 omega/km, 1.5mm²Not more than 12.7 omega/km;

2) insulation resistance: the insulation resistance (20 ℃) between the cable cores and between the cores and the screens is more than 1000M omega.km;

3) voltage resistance: 0.5mm²The core and the core, and the core and the shielding layer are not broken down after being subjected to alternating current of 1500V/1min, and the thickness of the shielding layer is 1.5mm²The core is not broken down when the alternating current is 2500V/1 min.

4) The cable is oil-resistant and acid-alkali resistant;

5) the method is suitable for long-term working depth: 150 m;

6) the cable bears the pulling force: not less than 200 kg.

Claims

1. A photoelectric composite cable comprises a center layer arranged at the center of the cable, wherein a wrapping layer (5) is wrapped on the outer side of the center layer, an intermediate layer is arranged on the outer side of the wrapping layer (5), and an outer sheath (7) is arranged on the outer side of the intermediate layer; the method is characterized in that: the central layer comprises an optical fiber cable (2), a signal wire (1), a power wire (3) and a filling wire, wherein the optical fiber cable is internally tangent to and wraps the inner wall of the covering (5); the optical fiber (21), the signal wire (1), the power wire (3) and the filling wire are tangent in pairs; the filling wire adopts a tensile rope (4), and the middle layer adopts a tensile braided layer (6).

2. The optoelectrical composite cable of claim 1, wherein: the optical fiber cable (2) comprises four optical fibers (21) arranged inside and a loose tube (22) arranged outside the optical fibers (21).

3. The optoelectrical composite cable of claim 1, wherein: the signal wire (1) is formed by twisting a plurality of distinguishable single-wire conductors (11); a sub-shielding layer (12) is arranged on the outer side of the plurality of single-wire conductors (11); an inner sheath (13) is arranged on the outer side of the sub-shielding layer (12).

4. The optoelectrical composite cable of claim 3, wherein: the single-wire conductor (11) is formed by coaxially twisting a plurality of tinned copper wires (111), and an insulating layer (112) is wrapped on the outer side of each tinned copper wire (111).

5. The optoelectrical composite cable of claim 3, wherein: the inner sheath (13) is made of fluoroplastic, and the thickness of the inner sheath (13) is more than or equal to 0.15 mm.

6. The photoelectric composite cable according to any one of claims 3 to 5, wherein: the branch shielding layer (12) adopt to weave the braided shielding layer of parcel in single conductor (11) outside, braided shielding layer adopt tinned wire to weave and form, the density of weaving more than or equal to 85%.

7. The optoelectrical composite cable of claim 1, wherein: the power line (3) is formed by twisting a plurality of distinguishable single-wire conductors (31); an inner sheath (32) for fixing the plurality of single-wire conductors (31) is arranged outside the plurality of single-wire conductors (31); the single-wire conductor (31) is formed by coaxially twisting a plurality of tinned copper wires (311), and an insulating layer (312) is wrapped on the outer side of each tinned copper wire (311).

8. The optoelectrical composite cable of claim 1, wherein: the anti-tensile rope (4) and the anti-tensile braid layer (6) are both made of aramid fiber yarns; the weaving density of the tensile woven layer is greater than or equal to 80%.

9. The optoelectrical composite cable of claim 1, wherein: the wrapping layer (5) is formed by wrapping polyester films, and the covering rate of the total wrapping layer is more than or equal to 10%.

10. The optoelectrical composite cable of claim 1, wherein: the outer sheath (7) is made of polyurethane, and the thickness of the outer sheath is more than or equal to 1.5 mm.